Home / 1,507.66-2,081.75-1,066.16

Finding the Fourth Proportional to 1,507.66, 2,081.75 and 1,066.16

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Solution

The fourth proportional to 1,507.66, 2,081.75 and 1,066.16 is: 1,472.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.66 : 2,081.75 = 1,066.16 : x
  2. Step 2: Convert to fraction form
    1,507.66/2,081.75 = 1,066.16/x
  3. Step 3: Cross multiply
    1,507.66x = 2,081.75 × 1,066.16
  4. Step 4: Simplify right side
    1,507.66x = 2,219,484.45
  5. Step 5: Solve for x
    x = 2,219,484.45/1,507.66
  6. Step 6: Final answer
    x = 1,472.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.